TEST OF MODELS OF THE COSMIC INFRARED BACKGROUND WITH MULTIWAVELENGTH OBSERVATIONS OF THE BLAZAR 1ES 1218+30.4 IN 2009

S. Archambault; T. Arlen; T. Aune; M. Beilicke; W. Benbow; R. Bird; M. Boettcher; A. Bouvier; J. H. Buckley; V. Bugaev; L. Ciupik; E. Collins-Hughes; M. P. Connolly; W. Cui; R. Dickherber; J. Dumm; M. Errando; A. Falcone; S. Federici; Q. Feng; J. P. Finley; L. Fortson; A. Furniss; N. Galante; D. Gall; A. III Garson; G. H. Gillanders; S. Griffin; J. Grube; C. Gusbar; G. Gyuk; D. Hanna; J. Holder; G. Hughes; P. Kaaret; M. Kertzman; Y. Khassen; D. Kieda; H. Krawczynski; A. Lamerato; M. J. Lang; K. Li; A. S. Madhavan; G. Maier; P. Majumdar; S. McArthur; A. McCann; J. Millis; P. Moriarty; R. Mukherjee; D. Nieto; A. O'Faolain De Bhroithe; R. A. Ong; M. Orr; A. N. Otte; N. Park; J. S. Perkins; M. Pohl; A. Popkow; H. Prokoph; J. Quinn; K. Ragan; P. T. Reynolds; G. T. Richards; E. Roache; P. Roustazadeh; D. B. Saxon; G. H. Sembroski; G. D. Senturk; C. Skole; D. Staszak; I. Telezhinsky; G. Tesic; M. Theiling; A. Varlotta; V. V. Vassiliev; S. Vincent; S. P. Wakely; A. Weinstein; R. Welsing; D. A. Williams; B. Zitzer

doi:10.1088/0004-637X/788/2/158

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TEST OF MODELS OF THE COSMIC INFRARED BACKGROUND WITH MULTIWAVELENGTH OBSERVATIONS OF THE BLAZAR 1ES 1218+30.4 IN 2009

S. Archambault, T. Arlen, T. Aune, M. Beilicke, W. Benbow, R. Bird, M. Boettcher, A. Bouvier, J. H. Buckley, V. Bugaev, …

The Astrophysical journal, v 788(2)

20 Jun 2014

DOI: https://doi.org/10.1088/0004-637X/788/2/158

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Abstract

Astronomy & Astrophysics

Physical Sciences

Science & Technology

We present the results of a multi-wavelength campaign targeting the blazar 1ES 1218+30.4 with observations with the 1.3 m McGraw-Hill optical telescope, the Rossi X-ray Timing Explorer (RXTE), the Fermi Gamma-Ray Space Telescope, and the Very Energetic Radiation Imaging Telescope Array System (VERITAS). The RXTE and VERITAS observations were spread over a 13 day period and revealed clear evidence for flux variability, and a strong X-ray and gamma-ray flare on 2009 February 26 (MJD 54888). The campaign delivered a well-sampled broadband energy spectrum with simultaneous RXTE and VERITAS very high energy (VHE, > 100 GeV) observations, as well as contemporaneous optical and Fermi observations. The 1ES 1218+30.4 broadband energy spectrum-the first with simultaneous X-ray and VHE gamma-ray energy spectra-is of particular interest as the source is located at a high cosmological redshift for a VHE source (z = 0.182), leading to strong absorption of VHE gamma rays by photons from the optical/infrared extragalactic background light (EBL) via gamma VHE +gamma EBL -> e(+) e(-)pair-creation processes. We model the data with a one-zone synchrotron self-Compton (SSC) emission model and with the extragalactic absorption predicted by several recent EBL models. We find that the observations are consistent with the SSC scenario and all the EBL models considered in this work. We discuss observational and theoretical avenues to improve on the EBL constraints.

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Title: TEST OF MODELS OF THE COSMIC INFRARED BACKGROUND WITH MULTIWAVELENGTH OBSERVATIONS OF THE BLAZAR 1ES 1218+30.4 IN 2009
Creators: S. Archambault - McGill University
T. Arlen - University of California, Los Angeles
T. Aune - University of California, Los Angeles
M. Beilicke - Washington University in St. Louis
W. Benbow - Harvard University
R. Bird - University College Dublin
M. Boettcher - Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA
A. Bouvier - University of California, Santa Cruz
J. H. Buckley - Washington University in St. Louis
V. Bugaev - Washington University in St. Louis
L. Ciupik - Adler Planetarium
E. Collins-Hughes - University College Dublin
M. P. Connolly - National University of Ireland, Galway
W. Cui - Purdue University West Lafayette
R. Dickherber - Washington University in St. Louis
J. Dumm - University of Minnesota
M. Errando - Columbia University
A. Falcone - Pennsylvania State University
S. Federici - University of Potsdam
Q. Feng - Purdue University West Lafayette
J. P. Finley - Purdue University West Lafayette
L. Fortson - University of Minnesota
A. Furniss - University of California, Santa Cruz
N. Galante - Harvard University
D. Gall - University of Iowa
A. III Garson - Washington University in St. Louis
G. H. Gillanders - National University of Ireland, Galway
S. Griffin - McGill University
J. Grube - Adler Planetarium
C. Gusbar - Ohio University - Lancaster
G. Gyuk - Adler Planetarium
D. Hanna - McGill University
J. Holder - University of Delaware
G. Hughes - DESY, D-15738 Zeuthen, Germany
P. Kaaret - University of Iowa
M. Kertzman - DePauw University
Y. Khassen - University College Dublin
D. Kieda - University of Utah
H. Krawczynski - Washington University in St. Louis
A. Lamerato - Ohio University - Lancaster
M. J. Lang - National University of Ireland, Galway
K. Li - Washington University in St. Louis
A. S. Madhavan - Iowa State University
G. Maier - DESY, D-15738 Zeuthen, Germany
P. Majumdar - Saha Institute of Nuclear Physics
S. McArthur - University of Chicago
A. McCann - University of Chicago
J. Millis - Anderson University - South Carolina
P. Moriarty - Galway-Mayo Institute of Technology
R. Mukherjee - Columbia University
D. Nieto - Columbia University
A. O'Faolain De Bhroithe - University College Dublin
R. A. Ong - University of California, Los Angeles
M. Orr - Iowa State University
A. N. Otte - Georgia Institute of Technology
N. Park - University of Chicago
J. S. Perkins - University of Maryland, Baltimore County
M. Pohl - University of Potsdam
A. Popkow - University of California, Los Angeles
H. Prokoph - DESY, D-15738 Zeuthen, Germany
J. Quinn - University College Dublin
K. Ragan - McGill University
P. T. Reynolds - Cork Institute of Technology
G. T. Richards - Georgia Institute of Technology
E. Roache - Harvard University
P. Roustazadeh - Ohio University - Lancaster
D. B. Saxon - University of Delaware
G. H. Sembroski - Purdue University West Lafayette
G. D. Senturk - Columbia University
C. Skole - DESY, D-15738 Zeuthen, Germany
D. Staszak - McGill University
I. Telezhinsky - University of Potsdam
G. Tesic - McGill University
M. Theiling - Purdue University West Lafayette
A. Varlotta - Purdue University West Lafayette
V. V. Vassiliev - University of California, Los Angeles
S. Vincent - DESY, D-15738 Zeuthen, Germany
S. P. Wakely - University of Chicago
A. Weinstein - Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
R. Welsing - DESY, D-15738 Zeuthen, Germany
D. A. Williams - University of California, Santa Cruz
B. Zitzer - Argonne National Laboratory
Publication Details: The Astrophysical journal, v 788(2)
Publisher: Iop Publishing Ltd
Number of pages: 9
Grant note: NSERC in Canada; Natural Sciences and Engineering Research Council of Canada (NSERC) SFI 10/RFP/AST2748 / Science Foundation Ireland; European Commission U.S. Department of Energy Office of Science; United States Department of Energy (DOE) 1352567 / Direct For Mathematical & Physical Scien; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) Smithsonian Institution 0969043 / Division Of Physics; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) U.S. National Science Foundation; National Science Foundation (NSF) STFC in the U.K; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC)
Resource Type: Journal article
Language: English
Academic Unit: Physics
Web of Science ID: WOS:000337466200061
Scopus ID: 2-s2.0-84902135603
Other Identifier: 991019201508104721

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Collaboration types: Domestic collaboration; International collaboration
Web of Science research areas: Astronomy & Astrophysics

TEST OF MODELS OF THE COSMIC INFRARED BACKGROUND WITH MULTIWAVELENGTH OBSERVATIONS OF THE BLAZAR 1ES 1218+30.4 IN 2009

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